ArcGIS Pro 2.7 API Reference Guide
PrefixClause Property (QueryDef)

ArcGIS.Core.Data Namespace > QueryDef Class : PrefixClause Property
Gets or sets the prefix clause used by the query.
Syntax
public string PrefixClause {get; set;}
Public Property PrefixClause As String
Remarks
A clause that will be inserted between the SELECT keyword and the SELECT COLUMN LIST (subfields). Most commonly used for clauses like DISTINCT or ALL, e.g., SELECT PrefixClause SubFields WHERE WhereClause PostfixClause.
Requirements

Target Platforms: Windows 10, Windows 8.1

See Also

Reference

QueryDef Class
QueryDef Members